4 ms·
The v6 space has structure and is much smaller than that
by dmw_ng 5y ago
The v6 space has structure and is much smaller than that
- kalleboo 5y agoAside from Shodan's neat trick of infiltrating the NTP pool, are there any papers/blogs on successfully exploiting known properties of IPv6 (network prefixes, MAC vendors etc)? However I think about it it seems too massive
- lima 5y agoMany providers sell netflow data.
- tux3 5y ago....infiltrating the NTP pool! Oh my, that is clever =)
- dmw_ng 5y agoI was mostly thinking about the sparse structure of upper bits (which are easily enumerable e.g. by downloading a RIPE database dump). As for the lower 64, MAC address OUIs contribute at most around 15 bits, and the distribution is likely strongly skewed towards only a handful of vendors, so actual randomness is probably lower still.
- pjf 5y agohttps://www.entropy-ip.com/ https://www.entropy-ip.com/ https://arxiv.org/abs/1606.04327 https://arxiv.org/abs/1606.04327